scmi: fix psci protocol-count assertions

There are 2 asserts that check that protocol_count > dis_protocol_count_psci,
instead of checking protocol_count >= dis_protocol_count_psci.
This causes the assertion to fail when the values are equal, and it
shouldn't because the 2 values can be equal.

Signed-off-by: Yaron Micher <yaronm@hailo.ai>